#5183D7#5183D7

#5183D7 is a mid, vivid blue. Relative luminance 0.229; OKLCH L 61.4% C 0.139 H 260.2°. Best body text is #000000 at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#5183D7
RGB	rgb(81, 131, 215)
HSL	hsl(218, 63%, 58%)
HSV	hsv(218, 62%, 84%)
CMYK	cmyk(62.3%, 39.1%, 0%, 15.7%)
CIE-LAB	lab(54.95, 9.18, -48.15)
CIE-LCH	lch(54.95, 49.02, 280.80°)
OKLab	oklab(61.44% -0.0237 -0.1369)
OKLCH	oklch(61.44% 0.139 260.2)
XYZ	xyz(23.7711, 22.8860, 67.4415)
Luminance	0.2289 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5183D7 #D7A551

analogous

#51C6D7 #5183D7 #6251D7

triadic

#5183D7 #D75183 #83D751

tetradic

#5183D7 #D751C6 #D7A551 #51D762

square

#5183D7 #D751C6 #D7A551 #51D762

split-complementary

#5183D7 #D76251 #C6D751

monochromatic

#20498D #2C63BF #5183D7 #83A6E2 #B5CAEE

Accessibility & contrast

On white

3.77

#5183D7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.58

#5183D7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5183D7

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5183D7	#FFFFFF	#000000	##000000
##5183D7	1.00	3.77	5.58	5.58
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.58	21.00	1.00	1.00
##000000	5.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E8ADA

Deuteranopia (green-blind)

#4B7ED5

Tritanopia (blue-blind)

#0096A3

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #5183d7;
/* rgb */ color: rgb(81, 131, 215);
/* oklch */ color: oklch(61.4% 0.139 260.2);

Tailwind

colors: {
  custom: {
    50: '#8da6e4',
    500: '#5183d7',
    950: '#000000',
  },
}

SCSS

$custom: #5183d7;
$custom-light: #8da6e4;
$custom-dark: #000000;

JSON

{
  "hex": "#5183d7",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 215
  },
  "hsl": {
    "h": 217.612,
    "s": 62.617,
    "l": 58.039
  },
  "oklch": {
    "l": 0.61442,
    "c": 0.13892,
    "h": 260.2
  },
  "luminance": 0.22888
}

Semantic roles & 50–950 ramp

primary

#5183D7

secondary

#DDC9A7

accent

#A942E6

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D0F15

muted

#7E7F84

Preview Lab

Preview with #5183D7

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →